scope:

This document specifies procedures to assess acoustic signals at passenger external doors applying to all kind of rolling stock.The following applies to this standard:

- this document refers to acoustical passenger information indicating the release, opening and closing of passenger doors;

- this document is applicable to tonal signals with defined frequency components levels and pulse sequences;

- this document is not applicable to spoken information or to signals comprising a sequence of impulses (such as a door finding signal).

NOTE Acoustic door signals are defined in EN 16584‑2 "Design for PRM use".